heimann



(No Model.)

S.- HEIMANN.

GLOBE FOR ELECTRIC LAMPS,

' No. 393,704. Patented N ov. 27, 1 888.

v UNITED STATES PATENT OFFIcE.

SALOMON HEIMANN, OF NEW YORK, N. Y.

GLOBE FOR ELECTRIC LAlVlPS.

SPECIFICATION forming part of Letters Patent No. 393,704, dated November27, 1888.

Application filed April 19,1888. Serial No. 9.71.185. (No model.)

To all whom it may concern.-

Be it known that I, SALOMON HEIMANN, of the city, county, and State ofNew York, have invented certain new and useful Improvements in Globesfor Electric and other Lamps, of which the following is a specification.

This invention relates to an improved globe for electric and otherlamps, by which the light of the lamp is diffused in a very effectivemanner; and the invention consists of a globe for Referring to thedrawings, A represents av globe for electric, incandescent, or otherlamps, the body of which is made ofannular shape and biconvexcross-section, which serves to diffuse the light of the lamp in a moreeffective manner than with plano-convex lenses, While the same can bemanufactured with less difficulty. This principle is also adapted to beused for chimneys of gas or petroleum lamps in which that portion of thechimney encirclingthe flame is made of annular-shape and of biconvex orlensshaped crosssection, as shown in Figs. 2 and 3.

I am aware that plano-convex globes are old and well known; also, thathollow biconvex lenses were used before, and I do not claim thesefeatures, broadly.

Having thus described my invention, Iclaim as new and desire to secureby Letters Patent- A globe or chimney for electric and other lamps,provided with a solid annular biconvex body, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

SALOMON HEIMANN.

\Vitnesses:

PAUL GoEPEL,

JOHN A. STRALEY.

